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Thread: How to route hydro hoses through frame when a sealed system

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    Default How to route hydro hoses through frame when a sealed system

    Hi
    Im fitting some Sram Force Hydo Levers / brakes to a a frame with internal cable routing

    Obviously i will have to open the the system to route the cables but....

    Any tips or tricks or do i just need to drain the system before then refill / bleed afterwards?

    Am i best to open the system at the caliper or Shifter end?

    First time trying hydro stuff so any help appreciated

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    Default Re: How to route hydro hoses through frame when a sealed system

    I don't remember for sure but I believe you could do it from either direction. One end or the other might be easier to work with depending on the frame, generally cutting near the levers allows you to more easily use gravity to keep more fluid in the line. I haven't worked with SRAM lines in a bit but I don't think the fittings have changed much recently?

    But I'd plan on bleeding it in any case when you're done, though I've been surprised how little fluid I actually lose.

    I've got some small plastic caps that can be placed over a cut line to prevent much if any fluid loss while routing. I saved them from something, they just slide on temporarily. Whether or not I use them depends on how easy it is to route a disc brake line through a particular frame.

    To help with the internal routing part there are a few things you can do to make that easier. Some frames are pretty easy, others not so much. If it's one of the more difficult ones I start from whichever end of the frame seems easiest by running a cable liner through the frame, then run a regular metal cable through the cable liner. Then remove the cable liner, sometimes you can omit the cable liner and just start with the metal cable, depends. Then I run the disc brake line by sliding it over the metal cable. Then you reassemble the barb/olive/fastener and reattach the line, bleed etc. It's a much easier job, imho, with a good hose cutter and tool for inserting the barb but I have done it successfully with quality wire cutters before.

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    Default Re: How to route hydro hoses through frame when a sealed system

    @kytyree , Thanks for the advice

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